Calibration Of Measuring Instruments

The following steps will help you establish an instrument calibration procedure or tune up your existing one.

Calibration of measuring instruments. In order to achieve the finest measurement and thereby the correct decision based upon it calibration of equipment both before and after use is essential. Hb 145 was developed as a source of calibration procedures for weights and measures laboratories and covered mass length and volume calibrations for field. Because we are performing a measurement we are using measuring devices equipment and instrument or in general measuring resources that must undergo calibration to deliver a reliable result. Fundamentally measurement is a process which checks whether something is.

Calibration of measuring instruments is an association between standard measurement and analysis using your equipment. The calibration of an instrument can be carried out by comparing the readings on the instrument with those given by a reference instrument or calibrator. This both establishes metrological traceability for the measurement and fulfills the requirements of iso 9000. The accuracy of the standard is required to be ten times the accuracy of the measuring instrument.

Does nist require or recommend specific recalibration intervals for measuring instruments devices or calibration standards. Calibration helps identify the amount of drift which helps analyze instrument stability and measurement consistency. In general nist does not require or recommend any set recalibration interval for measuring instruments devices or standards. Specific recalibration intervals depend on a number of factors including.

As per the results obtained from the readings obtained of the instrument and the sub standards the curve is plotted. Management should be confident that their measuring devices are reading correctly. If the instrument is accurate there will be matching of the. Calibration of the measuring instrument is the process in which the readings obtained from the instrument are compared with the sub standards in the laboratory at several points along the scale of the instrument.

Oppermann is out of print and the majority of content has been updated and published in the publications noted below. Nbs handbook 145 1986 handbook for the quality assurance of metrological measurements by john k. To the instrument engineer or technician calibration is the process of determining the relationship between the values of the quantity being measured and that indicated on a measuring instrument. Assuring the quality of a measurement is crucial.

Taylor and henry v. It is the process of checking the reading of the device to see how the measurement compares to the true value.